There was a wave of car rental outfits. Enterprise Holdings, which runs the Enterprise, Alamo and National car rental groups, announced that it will end the discount deal it has with the NRA on March 26.

On Friday, car rental company Hertz said in a tweet that it’s also ending its NRA rental car discount program.

The NRA was advertising a Hertz partnership on its “member benefits” page as recently as Friday morning, but that notice disappeared by the afternoon.

Avis and Budget, which are owned by the same company, were also listed as discount providers on NRA’s website Friday. But when reached for comment, Avis Budget Group told CNNMoney that it too was ending its partnership with the organization.

Symantec, which makes the Norton anti-virus software and owns the identity theft protection company LifeLock, said Friday that it is severing ties with the NRA. And SimpliSafe, which sells home security systems, said the same.

None of the companies gave details about why or when they decided to cut ties with the NRA, but the news comes as the hashtag #BoycottNRA has circulated widely on social media.

In this file photo, customer service representatives wait on customers at Enterprise rent-a-car at the Fort Lauderdale/Hollywood International airport July 10, 2007 in Fort Lauderdale, Florida. (Credit: Joe Raedle/Getty Images)

After a mass shooting at a Florida high school last week left 17 people dead, survivors of the massacre have protested for stronger gun laws.

Some of those survivors confronted NRA spokeswoman Dana Loesch at a CNN town hall on Wednesday. Loesch blamed a flawed system for letting people who shouldn’t be able to buy guns slip through the cracks.

Two other companies — the insurer Chubb and Wyndham Hotel Group — confirmed to CNNMoney Friday that they’ve recently ended partnerships with the NRA. However, those decisions were made prior to the shooting at Marjory Stoneman Douglas High School in Parkland, Florida last week.